Welder&#39;s clamp



- A'ug.28, 1945. R. L. cox 2,383,591

Filed Dec. 29, 1943 2 Sheets-Sheet l Patented Aug. 28, 1945 UNITED STATES PATENT OFFICE- WELDERS'CLAMP I Ray L. Cox, Mesa, Ariz. Application December 29, 1943, Serial No. 516,111 I (01. 113-99) 4 Claims.

The present invention relates to new and useful improvements in clamps for use particularly by welders, and has for its primary object to provide novel mean for firmly holding various sizes of rings and permitting said rings to be readily turned while welding.

Other objects of the invention are to provide an adjustable welders ring holding and rotating clamp of the aforementioned character which will be comparatively simple in construction, strong, durable, highly eflicient and reliable in use, compact and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure 1 is a view in side elevation of a clamp constructed in accordance with the present invention.

Figure 2 is a plan View of the device.

Figure 3 is a view in vertical longitudinal section through the device.

Figure 4 is a cross sectional view, taken substantially on theline 44 of Figure 3.

Figure 5 is a plan view of an intermediate portion of the device.

Figure 6 is a view slidably adjustable rod is fixed thereon.

Referring now to the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a sleeve I of suitable metal. be firmly clamped in a conventional vise, said sleeve being stationary. The sleeve I has formed in its forward end portion diametrically opposite notches 2, the purpose of which will be presently set forth. Rotatably and slidably mounted in the sleeve I is a tubular housing 3 which both ends of said sleeve. A collar 4 on the tube 3 is engageable with one end of the sleeve I. Diametrically opposite lugs 5 on the tubular housing 3 are engageable with the other end of the sleeve I and in the notches 2. The elements 4 and 5 limit the sliding movement of the tubular housing 3 in the sleeve I. Further, with the elements 5 engaged in the notches 2, rotation of the tubular housing 3 in the sleeve 1 is positively prevented.

One end portion of the tubular housing 3 has in side elevation of the and the outer jaw which The sleeve I is adapted to projects beyond formed therein a longitudinal slot 6. Fixed on this end portion of the tubular housing 3 is a substantially oval ring constituting what may be considered a stationary inner jaw I.

Mounted for longitudinal sliding adjustment in the tubular housing 3 is a metallic rod 8. Fixed on one end of the rod 8 and operable in the slot 6 is a substantially U-shaped adjustable. 'outerjaw 9 which is cooperable with the jaw 'I for receiving and clamping therebetween the ring to be welded.

The rod 8 includes a threaded end portion In which projects beyond the corresponding end of the tubular housing 3. Threaded on the portion I0 of the rod 8 is a nut II for abutting engagement with the opposed end of the tubular housing 3. A tubular handle I2 is fixed on the nut II and projects longitudinally therefrom in spaced, concentric relation to the threaded end portion I0 of the rod 8.

It is thought that the operation of the device will be readily apparent from a consideration of the foregoing. Briefly, the sleeve I is firmly clamped between the jaws of a vise and the lugs 5 are engaged in the notches 2. Thus, the assembly is held against rotating or turning. The work is then inserted in the device and the nut II is turnedthrough the medium of the handle I2 for pulling the rod 8 through the tubular housing 3, the nut II abutting one end of said housing. In this manner the jaw 9 is moved toward the jaw I and the work is firmly clamped therebetween. To turn or rotate the work during the welding operation, the tubular housing 3 is moved longitudinally in the sleeve I to disengage the lugs 5 from the notches 2. Then, with one hand gripping the handle I2, the housing 3 may be rotated in the sleeve I.

It is believed that the many advantages of a welders clamp constructed in accordance with the present invention will be readily understood,

and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction may be resorted to which will fall within the scope of the invention as claimed,

What is claimed is: v

l. A welders clamp comprising a stationary sleeve, a tubular housing rotatably and slidably mounted in said sleeve, coacting means on the housing and sleeve for releasably securing the former against rotation relative to said sleeve, a stationary inner jaw on one end portion of the housing, a rod. mounted for longitudinal sliding adjustment in the housing, anadjustable outer work therebetween, and means for 2 jaw fixed on said rod and cooperable with the first-named jaw, said jaws for the reception of work therebetween, and means for longitudinally adjusting the rod relative to the housing to move the second-named jaw for clamping the work between the jaws.

2. -A welders clamp comprising a stationary sleeve, a tubular housing rotatably and slidably mounted in said sleeve, coacting means on the housing and sleeve for releasably securing the former against rotation relative to said sleeve, a sta 'onary inner jaw on one end portion of the hou ing, a rod mounted for longitudinal sliding adj stment in the housing, an adjustable outer jaw fixed on said rod and cooperable with the first-named jaw, said jaws for the reception of longitudinally adjusting the rod relative to the housing to move the second-named jaw for clamping the work between the jaws, said means including a nut threadedly mounted on the rod and engaged with one end of the housing, and a tubular handle fixed on said nut for'rotatingthe latter.

3. A welders clamp comprising a stationary sleeve, a,tubular housing rotatably and slidably' mounted in said sleeve, means for releasably securing the housing against rotation in the sleeve, said housing havin a longitudinal slot in one end portion, a stationary inner jaw on said one end portion of the housing, a rod slidable in the and slidably mounted in said housing, a substantially U-shaped adjustable outer jaw fixed on one end of the rod and operable in the slot, the outer jaw being cooperable with the first-named jaw for receiving and clamping a piece of work therebetween, and means for adjusting the rod in the housing.

4. A welders clamp of the character described comprising a stationary sleeve having notches in one end portion, a tubular housing rotatably sleeve, a collar fixed on the housing and engageable with the other end ofthe sleeve, lugs 0n the housing engageable with said one end of the sleeve and in the notches, the collar and the lugs constituting means for limiting sliding movement of the housing in the sleeve in opposite directions, said lugs, in conjunction with the notches, further constituting means for releasably securing the housing against rotation in the sleeve, said housing having a longitudinal slot in one end portion, a stationary inner jaw fixed on said one end portion of the housing, a rod slidable in the housing, a substantially U-shaped, adjustable outer jaw fixed on one end of the rod and operable in the slot, said outer jaw being coopera-ble with the inner jaw for receiving and securing a piece of work therebetween, a nut threadedly mounted on the rod and engaged with the other end of the housing, and a tubular handle fixed on the nut.

RAY L. COX. 

